WOW!!! Thank for the test Trevi_lux… I will order the Nice lithium from FT right now!

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What is the no load voltage of the Nice cells before using them (when receiving them)?

(fastech says 1.5v Lithium. If I am not wrong, Lithium primary are 1.7volt)

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has a frikkin 2200mA constant current driver. Typical runtime is 60min as expected from such a high current draw. During the 60mins the light dims because voltage drops quasi-linearly. BA10 has acceptable regulation but for a premium flashlight brand i'd call this rather poor.

NOTE: Moving my photos from PhotoBucket to Flickr. PM me or post in the thread if you can’t see my images and need me to fix or send a gallery link. PhotoBucket images should remain visible until November 2018.

I got 2 packs and I just tested 4 batteries, two from each pack.
Fresh out of the box I discharged them at 1A and I got the following
Battery 1: 1770Mah
Battery 2: 1778Mah
Battery 3: 1776Mah
Battery 4: 1762Mah

Then I charged them and tested again fresh out of the charger and I got the following:
Battery 1: 1882Mah
Battery 2: 1885Mah
Battery 3: 1884Mah
Battery 4: 1883Mah

So it’s basically 1900Mah at 1A for all of them, and very little variance. They pretty much perform like the last Eneloops I got. Not sure about how they retain charge in the long term, but the “out of the box” values are really promising imho.

I just got the Klarus P1A. Will it make a difference if I use the Energizer Ultimate Lithium as opposed to the Energizer Advanced Lithium which you used in your test? The Klarus is going to be used in an emergency kit. Thanks.

Sorry beahaven , there are a mistake in one of the graphic, I said Energizer adv. Lithium, but as you can see in the first pic of this review, the energizer that I’ve used for test was Energizer Ultimate lithium.

Thanks for putting that old thread back up, it is a very interesting test!
From what I can see, the eneloop will last half as much as the Nice lithium and is twice as expensive. That means that if you are not recharging an eneloop more than 4 times in its life (~10years) then you would have been better off with a lithium primary… I wish to find a cheap 9V lithium primary now… (less than $4)

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I note that Fasttech lists the NICE lithium primaries as having the same shipping restrictions as lithium Ion batteries making them a long wait to receive. For those in the USA Battery Junction has Powerizer Lithium Iron batteries though not as good a buy and I have actually found Energizer Ultimates for less each on some sale offers.

I am ordering this light for an elderly female relative and I want to make sure it works when needed. I intend to send the light along with a package of Energizer Ultimate Lithium Batteries. Disappointed at Battery Junction’s lack of knowledge.

Some time ago I downloaded the technical documentation PDF s from Energizer for both batteries and the only real difference is that the Ultimate Lithiums are very slightly better maximum current drain and capacity than the Advanced Lithium batteries. Same chemistry and voltage output.

The latest packaging for the Ultimate Lithiums now claims 20 years so the link is out of date or has not been updated. I have some of the packs so marked. Per something I read recently some military tests show a shelf life potential closer to 35 years!